Table 3.

Pearson r correlations from each device linear acceleration’s data on the X axis.

		X Axis Smartphone 1	X Axis Smartphone 2	X Axis Smartphone 3	X Axis Vicon
X axis smartphone 1	Pearson Correlation	1	−0.386	−0.206	0.409
	Sig. (2-tailed)		0.001	0.084	0.039
	N	71	71	71	71
X axis smartphone 2	Pearson Correlation	−0.386	1	0.460	−0.266
	Sig. (2-tailed)	0.001		0.000	0.025
	N	71	71	71	71
X axis smartphone 3	Pearson Correlation	−0.206	0.460	1	−0.464
	Sig. (2-tailed)	0.084	0.000		0.000
	N	71	71	71	71
X axis Vicon	Pearson Correlation	−0.409	−0.266	−0.464	1
	Sig. (2-tailed)	0.039	0.025	0.000
	N	71	71	71	71